$(document).ready(function() {
	$("a.internal").attr('href',function(){
		var link = this.href;
		link = link.replace(/%20/gi,"-");
		link = link.replace(/ /gi,"-");
		link = link.replace(/&/gi,"_and_");
		return link;
	});
	
	$("#media_desc").css('top',function(){
		y = 72;
		centre = (300-$(this).height())/2;
		return y+centre;
	});
});